Noun
a small cell containing little cytoplasm that is produced along with the oocyte and later discarded
Source: WordNetSince the first polar body normally disintegrates rather than dividing again, meiosis in female mammals results in three products, the oocyte and two polar bodies. Source: Internet
The first division produces a daughter cell that will undergo a second division, and a much smaller "polar body" that is extruded from the surface of the cell and does not divide further. Source: Internet